Do calculations on scrap paper as needed. Worked-out solutions are provided at end.
- Sales at Regan Realty totaled six homes for the week. They were as follows: $175,000; $180,000; $150,000; $190,000; $160,000; $90,000. Calculate the (a) mean and (b) median.
- Computer Village counted the number of customers entering the store for a week. The results were: 1,095; 860; 1,095; 1,111; 865; 888; 1,000. What is the mode?
- This semester, Dawn Pisai took four 3-credit courses at El Camino College. She received A's in Accounting and Business Math and B's in Logic and Psychology. What is her cumulative grade point average (assume A = 4, B = 3) to the nearest tenth?
- Jim's cleaners reported the following sales for the first 10 days of July:
$800 | $900 | $400 | $600 | $500 | $100 | $800 | $200 | $900 | $300 |
Prepare a frequency distribution.
- Irwin/McGraw-Hill Publishing produced the following numbers of bound Business Math books during the first five weeks of last year:
Week | Bound books | 1 | 5,000 | 2 | 2,000 | 3 | 3,000 | 4 | 4,000 | 5 | 1,000 |
Prepare a bar graph. - Kelly Industries reported record profits of 20%. It stated in the report that sales costs were 50% and expenses were 30%. Prepare a pie graph for Kelly.
- Today, a new Ford Explorer costs $37,000. In 1991, the Explorer cost $18,700. What is the price relative to the nearest tenth percent?
- Calculate the standard deviation of the following data (to nearest hundredth):
2 3 7 13 15
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